7.73x0.5 2.27⼀2它的简便方法怎么做

2025-06-23 07:29:33
推荐回答(1个)
回答1:

7.73x0.5+2.27÷2
=7.73x0.5+2.27×0.5
=(7.73+2.27)x0.5
=10×0.5
=5